The plasma composition of larval Aeshna cyanea müller—II. The effect of the nutritional state on the free amino acids

Starvation causes disturbance in amino acid and fatty acid metabolism in Diporeia

“…If the interval excludes 0, then the difference is considered significant for that pair-wise comparison. the larvae switched to protein-based metabolism after exhausting their carbohydrate reserves (Herzog and Liappis, 1987). We also observed a decrease in proline levels starting soon after the onset of starvation with a rise 60 d later.…”

“…In a study conducted with the larval dragonfly Aeshna cyanea, proline along with glutamine, was found to be one of the main contributors of the free amino acid reserves used to meet energy demands during starvation (Herzog and Liappis, 1987). In Aeshna larvae, proline levels dropped immediately after a short starvation period (10 d) followed by an eventual rise after 30 d of starvation (Herzog and Liappis, 1987). These authors proposed that…”

“…Thus, disruptions in proline metabolism during starvation are likely to affect these processes in Diporeia. It is also important to note that alanine is the main precursor for proline synthesis in insects (Gade and Auerswald, 2002;Lorenz and Gade, 2009;Arrese and Soulages, 2010) and any changes in proline concentration are usually correlated with disruptions in alanine metabolism (Herzog and Liappis, 1987). Alanine is also an important osmolyte in crustaceans, essential for maintaining cellular ion balance (Abe et al, 1999).…”

Starvation causes disturbance in amino acid and fatty acid metabolism in Diporeia

“…If the interval excludes 0, then the difference is considered significant for that pair-wise comparison. the larvae switched to protein-based metabolism after exhausting their carbohydrate reserves (Herzog and Liappis, 1987). We also observed a decrease in proline levels starting soon after the onset of starvation with a rise 60 d later.…”

“…In a study conducted with the larval dragonfly Aeshna cyanea, proline along with glutamine, was found to be one of the main contributors of the free amino acid reserves used to meet energy demands during starvation (Herzog and Liappis, 1987). In Aeshna larvae, proline levels dropped immediately after a short starvation period (10 d) followed by an eventual rise after 30 d of starvation (Herzog and Liappis, 1987). These authors proposed that…”

“…Thus, disruptions in proline metabolism during starvation are likely to affect these processes in Diporeia. It is also important to note that alanine is the main precursor for proline synthesis in insects (Gade and Auerswald, 2002;Lorenz and Gade, 2009;Arrese and Soulages, 2010) and any changes in proline concentration are usually correlated with disruptions in alanine metabolism (Herzog and Liappis, 1987). Alanine is also an important osmolyte in crustaceans, essential for maintaining cellular ion balance (Abe et al, 1999).…”

Biochemical Composition and Fatty Acid, Amino Acid Analysis of Cymadusa Filosa (Amphipod; Gammarids) in the Red Sea –Egypt

“…In the present study the total amount from glutamic acid (nonessential Amino acids) in cultured adult about (24304.7308 µM), but not found in the field sample. In a study conducted with the larval dragonfly Aeshna cyanea, proline along with glutamine was found to be one of the main contributors of the free amino acid reserves used to meet energy demands during starvation (Herzog and Liappis, 1987).…”

Starvation causes disturbance in amino acid and fatty acid metabolism in Diporeia

“…If the interval excludes 0, then the difference is considered significant for that pair-wise comparison. the larvae switched to protein-based metabolism after exhausting their carbohydrate reserves (Herzog and Liappis, 1987). We also observed a decrease in proline levels starting soon after the onset of starvation with a rise 60 d later.…”

“…In a study conducted with the larval dragonfly Aeshna cyanea, proline along with glutamine, was found to be one of the main contributors of the free amino acid reserves used to meet energy demands during starvation (Herzog and Liappis, 1987). In Aeshna larvae, proline levels dropped immediately after a short starvation period (10 d) followed by an eventual rise after 30 d of starvation (Herzog and Liappis, 1987). These authors proposed that…”

“…Thus, disruptions in proline metabolism during starvation are likely to affect these processes in Diporeia. It is also important to note that alanine is the main precursor for proline synthesis in insects (Gade and Auerswald, 2002;Lorenz and Gade, 2009;Arrese and Soulages, 2010) and any changes in proline concentration are usually correlated with disruptions in alanine metabolism (Herzog and Liappis, 1987). Alanine is also an important osmolyte in crustaceans, essential for maintaining cellular ion balance (Abe et al, 1999).…”

Biochemical Composition and Fatty Acid, Amino Acid Analysis of Cymadusa Filosa (Amphipod; Gammarids) in the Red Sea –Egypt

“…In the present study the total amount from glutamic acid (nonessential Amino acids) in cultured adult about (24304.7308 µM), but not found in the field sample. In a study conducted with the larval dragonfly Aeshna cyanea, proline along with glutamine was found to be one of the main contributors of the free amino acid reserves used to meet energy demands during starvation (Herzog and Liappis, 1987).…”

Starvation causes disturbance in amino acid and fatty acid metabolism in Diporeia

“…If the interval excludes 0, then the difference is considered significant for that pair-wise comparison. the larvae switched to protein-based metabolism after exhausting their carbohydrate reserves (Herzog and Liappis, 1987). We also observed a decrease in proline levels starting soon after the onset of starvation with a rise 60 d later.…”

“…In a study conducted with the larval dragonfly Aeshna cyanea, proline along with glutamine, was found to be one of the main contributors of the free amino acid reserves used to meet energy demands during starvation (Herzog and Liappis, 1987). In Aeshna larvae, proline levels dropped immediately after a short starvation period (10 d) followed by an eventual rise after 30 d of starvation (Herzog and Liappis, 1987). These authors proposed that…”

“…Thus, disruptions in proline metabolism during starvation are likely to affect these processes in Diporeia. It is also important to note that alanine is the main precursor for proline synthesis in insects (Gade and Auerswald, 2002;Lorenz and Gade, 2009;Arrese and Soulages, 2010) and any changes in proline concentration are usually correlated with disruptions in alanine metabolism (Herzog and Liappis, 1987). Alanine is also an important osmolyte in crustaceans, essential for maintaining cellular ion balance (Abe et al, 1999).…”

Biochemical Composition and Fatty Acid, Amino Acid Analysis of Cymadusa Filosa (Amphipod; Gammarids) in the Red Sea –Egypt

“…In the present study the total amount from glutamic acid (nonessential Amino acids) in cultured adult about (24304.7308 µM), but not found in the field sample. In a study conducted with the larval dragonfly Aeshna cyanea, proline along with glutamine was found to be one of the main contributors of the free amino acid reserves used to meet energy demands during starvation (Herzog and Liappis, 1987).…”